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<a href="routing__io_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef __ROUTING_IO_H__</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define __ROUTING_IO_H__ 1</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include &lt;string&gt;</span>
<a name="l00005"></a>00005 
<a name="l00006"></a>00006 <span class="preprocessor">#include &lt;sys/select.h&gt;</span>
<a name="l00007"></a>00007 <span class="preprocessor">#include &lt;arpa/inet.h&gt;</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include &lt;libnetfilter_queue/libnetfilter_queue.h&gt;</span>
<a name="l00009"></a>00009 <span class="preprocessor">#include &lt;linux/icmp.h&gt;</span>
<a name="l00010"></a>00010 <span class="preprocessor">#include &lt;linux/netfilter.h&gt;</span>
<a name="l00011"></a>00011 
<a name="l00012"></a>00012 <span class="preprocessor">#include &quot;<a class="code" href="sample__io_8h.html">sample_io.h</a>&quot;</span>
<a name="l00013"></a>00013 <span class="preprocessor">#include &quot;<a class="code" href="rtp__packet_8h.html">rtp_packet.h</a>&quot;</span>
<a name="l00014"></a>00014 
<a name="l00015"></a><a class="code" href="routing__io_8h.html#aed39cf3ea439e96cb686386d3b848763">00015</a> <span class="keyword">typedef</span> int(*<a class="code" href="routing__io_8h.html#aed39cf3ea439e96cb686386d3b848763">callbackFnct</a>)(<span class="keyword">struct </span>nfq_q_handle*, <span class="keyword">struct </span>nfgenmsg*, <span class="keyword">struct </span>nfq_data*, <span class="keywordtype">void</span>*);
<a name="l00016"></a>00016 
<a name="l00017"></a>00017 <span class="comment">/*</span>
<a name="l00018"></a>00018 <span class="comment"> *</span>
<a name="l00019"></a>00019 <span class="comment"> * This class implements the real-time modification of VoIP-Data </span>
<a name="l00020"></a>00020 <span class="comment"> * exchange. The read and write methods are non-blocking, in case </span>
<a name="l00021"></a>00021 <span class="comment"> * there are no packets to process.</span>
<a name="l00022"></a>00022 <span class="comment"> *</span>
<a name="l00023"></a>00023 <span class="comment"> */</span>
<a name="l00024"></a><a class="code" href="classCRoutingIO.html">00024</a> <span class="keyword">class </span><a class="code" href="classCRoutingIO.html">CRoutingIO</a> : <span class="keyword">public</span> <a class="code" href="classISampleIO.html">ISampleIO</a>
<a name="l00025"></a>00025 {
<a name="l00026"></a>00026         <span class="keyword">public</span>:
<a name="l00027"></a><a class="code" href="classCRoutingIO.html#ab16e81c752863b6c3a61a975045fbd44">00027</a>                 <a class="code" href="classCRoutingIO.html#ab16e81c752863b6c3a61a975045fbd44">CRoutingIO</a>() : 
<a name="l00028"></a>00028                         <a class="code" href="classCRoutingIO.html#a0aa9533eb2b18090484067d8f96b7d70">mConfig</a>(NULL),
<a name="l00029"></a>00029                         <a class="code" href="classCRoutingIO.html#ad92c5b480687decd553e44952968cab0">mAddressEmbeddee</a>(0),
<a name="l00030"></a>00030                         <a class="code" href="classCRoutingIO.html#a8caf7b7ce404aebeecc59c728cf1a523">mAddressExtractee</a>(0),
<a name="l00031"></a>00031                         <span class="comment">/* current stream info is statically coded */</span>
<a name="l00032"></a>00032                         <a class="code" href="classCRoutingIO.html#afc47cdb8f568281dd1f29bd3f6aab36a">mStreamInfo</a>(NAudioFormats::<a class="code" href="namespaceNAudioFormats.html#a8819e97264e4bbfee5d0552ee4c36c7ca37ece5dd67be5ab19711cd2e20783dde">U8</a>, 8000, NAudioFormats::<a class="code" href="namespaceNAudioFormats.html#a3bd6168a4f5f18e84873337a65d3062ca6630bb20a91cfa0d81447c3728c90a5d">UNKNOWN_CODEC</a>),
<a name="l00033"></a>00033                         <a class="code" href="classCRoutingIO.html#a15b68bba5a686388dceacde6d479915a">mAction</a>(<a class="code" href="classISampleIO.html#a33f1d3778c9c332648df649a73fdb44ca3279ddc907bab3b5edc827db94b78b85">EMBED</a>),
<a name="l00034"></a>00034                         <a class="code" href="classCRoutingIO.html#ad9b39e550207f47052ff64870a85fe4a">mNfq_handle</a>(NULL),
<a name="l00035"></a>00035                         <a class="code" href="classCRoutingIO.html#a7b059b9cf154f14e3c12b1aea660eaf0">mNfq_q_handle</a>(NULL),
<a name="l00036"></a>00036                         <a class="code" href="classCRoutingIO.html#a4f78719c9b6fba9b84ddca472386db19">mNfq_fd</a>(-1),
<a name="l00037"></a>00037                         <a class="code" href="classCRoutingIO.html#a53c26272f978651b1b09d85f1a7ef2f9">mPacketLength</a>(-1),
<a name="l00038"></a>00038                         <a class="code" href="classCRoutingIO.html#a6c854e8cad7babe72383d84b3aa556be">mPacketID</a>(-1),
<a name="l00039"></a>00039                         <a class="code" href="classCRoutingIO.html#a8be617115ccf75a8077098f589449e5e">mPacketReady</a>(false),
<a name="l00040"></a>00040                         <a class="code" href="classCRoutingIO.html#a3ce311f273a7cba9d541cded8a646db1">mIPPacket</a>(NULL),
<a name="l00041"></a>00041                         <a class="code" href="classCRoutingIO.html#abcfc9f25a5455bebd2e82ab7077ea885">mRTPPacket</a>(NULL)
<a name="l00042"></a>00042                         { }
<a name="l00043"></a><a class="code" href="classCRoutingIO.html#a3ac8ff9188e5745e90cd30d35289782b">00043</a>                 <span class="keyword">virtual</span> <a class="code" href="classCRoutingIO.html#a3ac8ff9188e5745e90cd30d35289782b">~CRoutingIO</a>() { }
<a name="l00044"></a>00044 
<a name="l00045"></a>00045                 <span class="comment">/* START methods inherited by ISampleIO */</span>
<a name="l00046"></a>00046                 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a865aedbbcac06e49b20836627231fd1c">init</a>(<a class="code" href="properties__reader_8h.html#a67847fd00cb49d80dd45f61722eb9a43">CPropertiesReader</a>* pConfig);
<a name="l00047"></a>00047                 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a20339035ba21f1bb9fc702a75d3735f5">destroy</a>();
<a name="l00048"></a>00048 
<a name="l00049"></a>00049                 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a375aa37b0805387ed610d23c3e1d031f">read</a>(<span class="keywordtype">void</span>** pData, <a class="code" href="classISampleIO.html#a33f1d3778c9c332648df649a73fdb44c">EAction</a>&amp; pAction, <span class="keywordtype">int</span> pTimeout<span class="comment">/* = 500000*/</span>);
<a name="l00050"></a>00050                 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a6c1ddd2b9e0b4e48f6832cb6247c1135">write</a>(<span class="keywordtype">void</span>* pData, <span class="keyword">const</span> <a class="code" href="classISampleIO.html#a33f1d3778c9c332648df649a73fdb44c">EAction</a>&amp; pAction, <span class="keywordtype">int</span> pLength);
<a name="l00051"></a>00051 
<a name="l00052"></a><a class="code" href="classCRoutingIO.html#a24140ba9720341e1187a726234afb4b4">00052</a>                 <span class="keyword">virtual</span> <a class="code" href="structNAudioFormats_1_1SStreamInfo.html">NAudioFormats::SStreamInfo</a> <a class="code" href="classCRoutingIO.html#a24140ba9720341e1187a726234afb4b4">getStreamInfo</a>() { <span class="keywordflow">return</span> <a class="code" href="classCRoutingIO.html#afc47cdb8f568281dd1f29bd3f6aab36a">mStreamInfo</a>; }
<a name="l00053"></a>00053                 <span class="comment">/* END methods inherited by ISampleIO */</span>
<a name="l00054"></a>00054 
<a name="l00059"></a><a class="code" href="classCRoutingIO.html#a4ab769caac33d78ec8f50bb5e14bac0c">00059</a>                 <span class="keyword">inline</span> uint32_t <a class="code" href="classCRoutingIO.html#a4ab769caac33d78ec8f50bb5e14bac0c" title="return the IP-address of the embedding party">getAddressEmbeddee</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCRoutingIO.html#ad92c5b480687decd553e44952968cab0">mAddressEmbeddee</a>; }
<a name="l00064"></a><a class="code" href="classCRoutingIO.html#a1b2ced22273da117810db48324d7ad6a">00064</a>                 <span class="keyword">inline</span> uint32_t <a class="code" href="classCRoutingIO.html#a1b2ced22273da117810db48324d7ad6a" title="return the IP-address of the extracting party">getAddressExtractee</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCRoutingIO.html#a8caf7b7ce404aebeecc59c728cf1a523">mAddressExtractee</a>; }
<a name="l00065"></a>00065 
<a name="l00071"></a>00071                 <span class="keywordtype">void</span> <a class="code" href="classCRoutingIO.html#a74f4833289b456259086e2b866287c53" title="debugging method for printing the packet&#39;s contents">printCurrentPacket</a>(uint8_t* pData, uint16_t pLength);
<a name="l00072"></a>00072 
<a name="l00073"></a>00073 
<a name="l00074"></a>00074         <span class="keyword">private</span>:
<a name="l00075"></a>00075                 <a class="code" href="classCRoutingIO.html#ab16e81c752863b6c3a61a975045fbd44">CRoutingIO</a>(<span class="keyword">const</span> <a class="code" href="classCRoutingIO.html">CRoutingIO</a>&amp; );
<a name="l00076"></a>00076                 <a class="code" href="classCRoutingIO.html">CRoutingIO</a>&amp; <a class="code" href="classCRoutingIO.html#af87aa3d3afc1652ffdb613a3bdd4bdb8">operator=</a>(<span class="keyword">const</span> <a class="code" href="classCRoutingIO.html">CRoutingIO</a>&amp; );
<a name="l00077"></a>00077 
<a name="l00078"></a><a class="code" href="classCRoutingIO.html#a98fcaea4b08f1607772c8fac5c1ea7fd">00078</a>                 <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classCRoutingIO.html#a98fcaea4b08f1607772c8fac5c1ea7fd">sIniSectionName</a>;
<a name="l00079"></a><a class="code" href="classCRoutingIO.html#ac59e8b4d544dcf5436e2cb0b3afc30e5">00079</a>                 <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classCRoutingIO.html#ac59e8b4d544dcf5436e2cb0b3afc30e5">sConfAddressEmbedee</a>;
<a name="l00080"></a><a class="code" href="classCRoutingIO.html#a7c85d3b1ad87b6ebb2bdfc36bc3e001f">00080</a>                 <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classCRoutingIO.html#a7c85d3b1ad87b6ebb2bdfc36bc3e001f">sConfAddressExtractee</a>;
<a name="l00081"></a><a class="code" href="classCRoutingIO.html#af0a72f480d73731e41c7286d949e67e2">00081</a>                 <span class="keyword">static</span> <span class="keyword">const</span> std::string <a class="code" href="classCRoutingIO.html#af0a72f480d73731e41c7286d949e67e2">sConfNfqueueNum</a>;
<a name="l00082"></a><a class="code" href="classCRoutingIO.html#a4c9c313c95bc23ecaca0b75ce7bb844d">00082</a>                 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a4c9c313c95bc23ecaca0b75ce7bb844d">sBytesPerLine</a>;
<a name="l00083"></a><a class="code" href="classCRoutingIO.html#a0aa9533eb2b18090484067d8f96b7d70">00083</a>                 <a class="code" href="properties__reader_8h.html#a67847fd00cb49d80dd45f61722eb9a43">CPropertiesReader</a>* <a class="code" href="classCRoutingIO.html#a0aa9533eb2b18090484067d8f96b7d70">mConfig</a>;
<a name="l00084"></a>00084 
<a name="l00085"></a>00085                 <span class="comment">/* internal data */</span>
<a name="l00086"></a><a class="code" href="classCRoutingIO.html#ad92c5b480687decd553e44952968cab0">00086</a>                 uint32_t <a class="code" href="classCRoutingIO.html#ad92c5b480687decd553e44952968cab0">mAddressEmbeddee</a>;
<a name="l00087"></a><a class="code" href="classCRoutingIO.html#a8caf7b7ce404aebeecc59c728cf1a523">00087</a>                 uint32_t <a class="code" href="classCRoutingIO.html#a8caf7b7ce404aebeecc59c728cf1a523">mAddressExtractee</a>;
<a name="l00088"></a><a class="code" href="classCRoutingIO.html#afc47cdb8f568281dd1f29bd3f6aab36a">00088</a>                 <span class="keyword">struct </span><a class="code" href="structNAudioFormats_1_1SStreamInfo.html">NAudioFormats::SStreamInfo</a> <a class="code" href="classCRoutingIO.html#afc47cdb8f568281dd1f29bd3f6aab36a">mStreamInfo</a>;
<a name="l00089"></a><a class="code" href="classCRoutingIO.html#a15b68bba5a686388dceacde6d479915a">00089</a>                 <a class="code" href="classISampleIO.html#a33f1d3778c9c332648df649a73fdb44c">EAction</a> <a class="code" href="classCRoutingIO.html#a15b68bba5a686388dceacde6d479915a">mAction</a>;
<a name="l00090"></a>00090 
<a name="l00091"></a>00091                 <span class="comment">/* NFQUEUE handles */</span>
<a name="l00092"></a><a class="code" href="classCRoutingIO.html#ad9b39e550207f47052ff64870a85fe4a">00092</a>                 <span class="keyword">struct </span>nfq_handle* <a class="code" href="classCRoutingIO.html#ad9b39e550207f47052ff64870a85fe4a">mNfq_handle</a>;
<a name="l00093"></a><a class="code" href="classCRoutingIO.html#a7b059b9cf154f14e3c12b1aea660eaf0">00093</a>                 <span class="keyword">struct </span>nfq_q_handle* <a class="code" href="classCRoutingIO.html#a7b059b9cf154f14e3c12b1aea660eaf0">mNfq_q_handle</a>;
<a name="l00094"></a><a class="code" href="classCRoutingIO.html#a4f78719c9b6fba9b84ddca472386db19">00094</a>                 <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a4f78719c9b6fba9b84ddca472386db19">mNfq_fd</a>;
<a name="l00095"></a><a class="code" href="classCRoutingIO.html#a53c26272f978651b1b09d85f1a7ef2f9">00095</a>                 <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a53c26272f978651b1b09d85f1a7ef2f9">mPacketLength</a>;
<a name="l00096"></a><a class="code" href="classCRoutingIO.html#a6c854e8cad7babe72383d84b3aa556be">00096</a>                 <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#a6c854e8cad7babe72383d84b3aa556be">mPacketID</a>;
<a name="l00097"></a><a class="code" href="classCRoutingIO.html#a8be617115ccf75a8077098f589449e5e">00097</a>                 <span class="keyword">volatile</span> <span class="keywordtype">bool</span> <a class="code" href="classCRoutingIO.html#a8be617115ccf75a8077098f589449e5e">mPacketReady</a>;
<a name="l00098"></a>00098 
<a name="l00099"></a><a class="code" href="classCRoutingIO.html#a3ce311f273a7cba9d541cded8a646db1">00099</a>                 <a class="code" href="classCIPPacket.html">CIPPacket</a>* <a class="code" href="classCRoutingIO.html#a3ce311f273a7cba9d541cded8a646db1">mIPPacket</a>;
<a name="l00100"></a><a class="code" href="classCRoutingIO.html#abcfc9f25a5455bebd2e82ab7077ea885">00100</a>                 <a class="code" href="classCRTPPacket.html">CRTPPacket</a>* <a class="code" href="classCRoutingIO.html#abcfc9f25a5455bebd2e82ab7077ea885">mRTPPacket</a>;
<a name="l00101"></a>00101 
<a name="l00102"></a>00102                 <span class="comment">/* NFQUEUE callback */</span>
<a name="l00103"></a>00103                 <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#add1fec48dbfec8f6a439da89b5be9e0b">callback</a>(<span class="keyword">struct</span> nfq_q_handle *pNfq_q_handle, <span class="keyword">struct</span> nfgenmsg* pNf_gen_msg, <span class="keyword">struct</span> nfq_data* pNfq_data, <span class="keywordtype">void</span>* pData);
<a name="l00104"></a>00104                 <span class="keywordtype">int</span> <a class="code" href="classCRoutingIO.html#add1fec48dbfec8f6a439da89b5be9e0b">callback</a>(<span class="keyword">struct</span> nfq_q_handle *pNfq_q_handle, <span class="keyword">struct</span> nfgenmsg* pNf_gen_msg, <span class="keyword">struct</span> nfq_data* pNfq_data);
<a name="l00105"></a>00105 
<a name="l00106"></a>00106                 <span class="comment">/* helpers */</span>
<a name="l00107"></a>00107                 int32_t <a class="code" href="classCRoutingIO.html#a5baf71cba1faee25286b70f01a96566a">get_address</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* pSection, <span class="keyword">const</span> <span class="keywordtype">char</span>* pKey, uint32_t* pAddress);
<a name="l00108"></a>00108 };
<a name="l00109"></a>00109 
<a name="l00110"></a>00110 <span class="preprocessor">#endif </span><span class="comment">/* __ROUTING_IO_H__ */</span>
<a name="l00111"></a>00111 
</pre></div></div>
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